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目的：分析并探讨产后产后出血原因，探讨有效预防措施。方法：选取来我院产后出血产妇90例，回顾性分析90例产妇临床资料，探讨其出血原因，制定有效的预防护理措施。结果：90例患者中，宫缩乏力63例，占总数70．00％；胎盘因素11例，占总数12．22％；软产道裂伤8例，占总数8．89％，凝血功能障碍8例，占总数8．89％。结论：产后出血的主要原因是由于产妇子宫收缩乏力、胎盘因素、软产道裂伤以及凝血功能障碍，制定预防措施对挽救患者生命安全至关重要。“,”Objective :to analysis and discuss the cause of postpartum postpartum hemorrhage ,explore effective prevention measures .Methods :to our hospital 90 cases of maternal postpartum hemorrhage were selected ,a retrospective analysis of 90 cases of maternal clinical data ,to explore the causes of hemorrhage ,establish effective preventive measures .Results :of 90 cases ,63 cases of uterine atony ,account for 70% ;11 cases of placental factors ,ac-counting for 12 .22% of the total ;8 cases of soft birth canal laceration ,accounting for 8 .89% of the total number ,8 cases of blood coagulation dysfunction , accounting for 8 .89% of the total number .Conclusion:the main cause of postpartum hemorrhage is due to maternal uterine inertia ,placenta factor ,the soft birth canal laceration and coagulopathy ,preventive measures to save the patient life safety critical .